#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int main() {
ios::sync_with_stdio(false); cin.tie(nullptr);
int n;
cin >> n;
vector<int> a(n);
for (auto &i : a)
cin >> i;
vector<int> k(n);
for (auto &i : k)
cin >> i;
vector<int> dp(n), pr(n);
for (int i = 0; i < n; i++) {
dp[i] = 1; pr[i] = i;
for (int j = 0; j < i; j++) {
if (__builtin_popcount(a[j] & a[i]) == k[i] && dp[j + 1] + 1 > dp[i]) {
dp[i] = dp[j] + 1; pr[i] = j;
}
}
}
int mx = max_element(dp.begin(), dp.end()) - dp.begin();
cout << dp[mx] << '\n';
vector<int> v = {mx};
while (mx != pr[mx]) v.push_back(mx = pr[mx]);
reverse(v.begin(), v.end());
for (auto i : v)
cout << i + 1 << ' ';
}
